Either allow the tree to be good, and it's fruit good; or shew the tree to be corrupt, and it's fruit corrupt: for the tree is known by it's fruit.

For that is not a good tree which produceth bad fruit, nor is the tree bad, which produceth good fruit:

And in the midst of the street, and of the river, which ran on each side, was the tree of life, producing fruits twelve times in the year, yielding its different fruit every month. And the leaves of the tree are for the healing of the nations.

so every good tree yieldeth good fruit, but a corrupt tree produces bad fruit:

a good tree cannot produce evil fruit, nor can a corrupt tree bear good fruit:

and seeing a fig-tree by the way, He went up to it, and finding nothing upon it but leaves, He saith to it, Let no fruit ever hereafter grow out of thee: and the fig-tree withered immediately.

And Peter remembring the tree, saith unto Him, Master, behold, the fig-tree which thou cursedst, is withered.

And now the ax is laid to the root of the trees: every tree therefore which doth not yield good fruit, is cut down and cast into the fire.

And now the ax is laid to the root of the trees; every tree therefore, which yieldeth not good fruit, is cut down and cast into the fire.